Need help with deciding NvLink size

NVLink - Graphics-Cards-AccessoriesROG-NVLINK Asus

Buy online Nvidia 900-14933-2500-000 - SLI-Bruecke GeForce RTX NVLink Bridge 4-Slot Cable AudioMultimedia 900-14933-2500-000

nvlink bridge 3slot GPU Name GPU Part # NVLINK Bridge ; NVIDIA RTX A6000 VCNRTXA6000-PB RTXA6000NVLINK-KIT ; NVIDIA Quadro RTX 8000 VCQRTX8000-PB

nvlink 4 slot Nvidia NVLink Nvidia NVLink SLI Nvidia SLI No Four Slot NA sp_CoolerType Cooler Type Checkbox Cooler Type All